vrf: use RCU protection in l3mdev_l3_out()
21Vexday Risk Score
No sign of exploitation. No public exploitation artifact known so far.
ssvc Trackcvss 7.8epss 0.3%
exploitation probability
0.3%top 83% of all CVEs
observed exploitation
nono source reports it
In the Linux kernel, the following vulnerability has been resolved:
vrf: use RCU protection in l3mdev_l3_out()
l3mdev_l3_out() can be called without RCU being held:
raw_sendmsg()
ip_push_pending_frames()
ip_send_skb()
ip_local_out()
__ip_local_out()
l3mdev_ip_out()
Add rcu_read_lock() / rcu_read_unlock() pair to avoid
a potential UAF.
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Affected products
Linux · LinuxReferences
https://git.kernel.org/stable/c/022cac1c693add610ae76ede03adf4d9d5a2cf21https://git.kernel.org/stable/c/20a3489b396764cc9376e32a9172bee26a89dc3bhttps://git.kernel.org/stable/c/5bb4228c32261d06e4fbece37ec3828bcc005b6bhttps://git.kernel.org/stable/c/6ccaa5797f5362a2aad6baa6ddaf4715ac2dd51ehttps://git.kernel.org/stable/c/6d0ce46a93135d96b7fa075a94a88fe0da8e8773https://git.kernel.org/stable/c/7b81425b517accefd46bee854d94954f5c57e019https://git.kernel.org/stable/c/c40cb5c03e37552d6eff963187109e2c3f78ef6fhttps://git.kernel.org/stable/c/c7574740be8ce68a57d0aece24987b9be2114c3chttps://lists.debian.org/debian-lts-announce/2025/03/msg00028.htmlhttps://lists.debian.org/debian-lts-announce/2025/05/msg00030.html